L-arginine nanometer particles, degradable nanometer motor with nitric oxide as power source and preparing method of degradable nanometer motor
A nanoparticle, nitric oxide technology, applied in nanostructure manufacturing, nanotechnology, nanotechnology and other directions, can solve problems such as burden, catalyst cannot be degraded, residual human body and other problems, achieve mild synthesis conditions, simple preparation methods, and broad application Foreground effect
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Embodiment 1
[0031] Synthesis of L-arginine / hyperbranched polyamide nanoparticles:
[0032] (1) Weigh L-arginine (L-Arg) and dissolve it in water to make a solution with a concentration of 5mg / mL;
[0033] (2) Weigh a certain amount of hyperbranched polyamide (HPAM) to prepare a solution with a concentration of 0.5 mg / mL.
[0034] (3) Take 1 mL of the L-arginine solution configured above, sonicate, and add 1 mL of 0.5 mg / mL hyperbranched polyamide solution dropwise to it. After continuous ultrasound for 5 minutes, centrifugation at 12000 rpm / min, the lower sediment was washed twice with distilled water and dried to obtain L-arginine / hyperbranched polyamide nanoparticles for use. The TEM image of L-arginine / hyperbranched polyamide nanoparticles prepared in Example 1 is as follows figure 1 As shown in the figure, it can be seen that L-arginine / hyperbranched polyamide nanoparticles with a particle size of about 130 nm were synthesized by this method, which has a relatively regular geometric shape. ...
Embodiment 2
[0036] Synthesis of L-arginine / hyperbranched polyamide nanoparticles:
[0037] (1) Weigh L-arginine (L-Arg) and dissolve it in water to make a solution with a concentration of 2.5 mg / mL;
[0038] (2) Weigh a certain amount of hyperbranched polyamide (HPAM) to prepare a solution with a concentration of 0.5 mg / mL.
[0039] (3) Take 1 mL of the L-arginine solution configured above, sonicate, and add 1 mL of 0.5 mg / mL hyperbranched polyamide solution dropwise to it. After continuous ultrasound for 5 minutes, centrifugation at 12000 rpm / min, the lower sediment was washed twice with distilled water and dried for later use. The TEM image of L-arginine / hyperbranched polyamide nanoparticles prepared in Example 2 is as follows figure 2 As shown in the figure, it can be seen that L-arginine / hyperbranched polyamide nanoparticles with a particle size of about 100 nm were synthesized by this method.
Embodiment 3
[0041] Synthesis of L-arginine / hyperbranched polyamide nanoparticles:
[0042] (1) Weigh L-Arginine (L-Arg) and dissolve it in water to make a solution with a concentration of 15 mg / mL;
[0043] (2) Weigh a certain amount of hyperbranched polyamide (HPAM) into a solution with a concentration of 0.5 mg / mL.
[0044] (3) Take 1 mL of the L-arginine solution configured above, sonicate, and add 1 mL of 0.5 mg / mL hyperbranched polyamide (HPAM) dropwise to it. After continuous ultrasound for 5 minutes, centrifugation at 12000 rpm / min, the lower sediment was washed twice with distilled water and dried for later use. The TEM image of L-arginine / hyperbranched polyamide nanoparticles prepared in Example 3 is as follows image 3 As shown, as the concentration of L-arginine increases, the particle size of L-arginine / hyperbranched polyamide nanoparticles gradually increases. When the concentration of L-arginine reaches 15mg / mL, the particle size is already greater than 500μm , And there is obvio...
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